“In just a few years, there will be 9 billion people on the Earth. All those mouths will demand food – and especially animal protein. But the current waste produced by mass farming of beef, pork, chicken and other meats may prove unsustainable for a teeming, hungry human population. The solution could be bugs, many have argued. They have more nutritional “bang for the buck” – and they could help feed the growing masses, some food experts say.”